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Financial Instruments - Additional Information (Detail) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 CAD ($) Customer Vendor | Dec. 31, 2017 CAD ($) Customer Vendor
Credit risk [member] |  |
Disclosure Of Financial Instruments [Line Items] |  |
Maximum exposure to credit risk | $ 44,166 | $ 10,662
Credit loss allowance | $ 50 |
Description of concentrations of risk | The Company has assessed that there is a concentration of credit risk, as 87.6% of the Company's accounts receivable were due from 5 customers as at December 31, 2018 (2017 - 89.3% due from 2 customers). |
Concentrations of credit risk | 87.60% | 89.30%
Number Of Customers | Customer | 5 | 2
Cash held | $ 32,634 | $ 9,208
Liquidity risk [member] |  |
Disclosure Of Financial Instruments [Line Items] |  |
Payables | 35.00% | 89.30%
Number Of Vendors | Vendor | 1 | 2
Currency risk [member] |  |
Disclosure Of Financial Instruments [Line Items] |  |
Increase the net loss due to currency transation | $ 90 |
Decrease in other comprehensive income | $ 326 |
Decrease in foreign currency exchange rate percentage | 10.00% |
Increase in foreign currency exchange rate percentage | 10.00% |

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